674
FZUS51 KBOX 211704
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
104 PM EDT SAT MAR 21 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-220600-
104 PM EDT SAT MAR 21 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A SERIES OF WEAK LOW PRES SYSTEMS WILL MOVE THROUGH NEW ENGLAND OVER
THE WEEKEND, FOLLOWED BY HIGH PRES EARLY NEXT WEEK. UNSETTLED
CONDITIONS POSSIBLE MID TO LATE WEEK.
ANZ250-220600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
104 PM EDT SAT MAR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND NW 2 FT AT
4 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING NE
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS
AND NW 2 FT AT 4 SECONDS.
SUN
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT
AT 5 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN RAIN IN THE AFTERNOON.
SUN NIGHT
NW WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT
AT 8 SECONDS AND SW 3 FT AT 4 SECONDS. RAIN.
MON
N WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: N 7 FT AT 6 SECONDS. A CHANCE OF SNOW SHOWERS.
A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
6 TO 7 FT. WAVE DETAIL: NE 7 FT AT 8 SECONDS. A CHANCE OF SNOW
SHOWERS IN THE EVENING.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
7 FT.
TUE NIGHT AND WED
SW WINDS 20 TO 25 KT. SEAS 3 TO 5 FT.
WED NIGHT
NW WINDS 20 TO 25 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-220600-
MASSACHUSETTS BAY AND IPSWICH BAY-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND NW 2 FT AT
3 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND NW 2 FT AT
4 SECONDS.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT 7 SECONDS.
RAIN.
SUN NIGHT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT
AT 8 SECONDS AND SW 2 FT AT 4 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND NW 1 FOOT AT
4 SECONDS. A CHANCE OF SNOW SHOWERS. A CHANCE OF RAIN IN THE
MORNING.
MON NIGHT
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL:
NE 5 FT AT 8 SECONDS AND NW 1 FOOT AT 5 SECONDS. A CHANCE OF SNOW
SHOWERS.
TUE AND TUE NIGHT
N WINDS 10 TO 15 KT, BECOMING SW 15 TO
20 KT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT.
WED AND WED NIGHT
SW WINDS 15 TO 20 KT, BECOMING NW. GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-220600-
CAPE COD BAY-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND NW 1 FOOT AT
4 SECONDS.
TONIGHT
NE WINDS AROUND 5 KT, BECOMING E AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT
7 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND NE 1 FOOT AT
6 SECONDS. RAIN.
SUN NIGHT
W WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,
BECOMING N WITH GUSTS UP TO 30 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 2 FT AT 6 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
MON NIGHT
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: N
4 FT AT 6 SECONDS. A CHANCE OF SNOW SHOWERS.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT.
TUE NIGHT THROUGH WED NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-220600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
104 PM EDT SAT MAR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: NW 4 FT AT 6 SECONDS AND SE 4 FT AT
8 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING E
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: NW 3 FT AT 6 SECONDS
AND SE 3 FT AT 8 SECONDS.
SUN
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN RAIN IN THE AFTERNOON.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT
7 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: N 7 FT AT 6 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 8 FT. WAVE DETAIL: NE 8 FT AT 8 SECONDS AND NW 1 FOOT AT
5 SECONDS.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
7 FT.
TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT.
WED AND WED NIGHT
SW WINDS 15 TO 20 KT, BECOMING W. GUSTS UP
TO 25 KT. SEAS 3 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-220600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
104 PM EDT SAT MAR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 8 SECONDS AND E 3 FT AT
8 SECONDS.
TONIGHT
NE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING
SE AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT
7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN RAIN LIKELY IN THE AFTERNOON.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT
7 SECONDS AND SE 2 FT AT 8 SECONDS. RAIN LIKELY.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND W 5 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 8 SECONDS AND NW 4 FT AT
4 SECONDS.
TUE
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
TUE NIGHT THROUGH WED NIGHT
NW WINDS 20 TO 25 KT. SEAS 2 TO
4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-220600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
104 PM EDT SAT MAR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 6 FT. WAVE DETAIL: SW 5 FT AT 8 SECONDS AND SE 3 FT AT
8 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN RAIN IN THE AFTERNOON.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING N WITH GUSTS UP TO 30 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT.
WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE 5 FT AT 8 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND SW 4 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND N 3 FT AT
4 SECONDS.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT.
TUE NIGHT THROUGH WED NIGHT
W WINDS 20 TO 25 KT. SEAS 2 TO
4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-220600-
NANTUCKET SOUND-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS.
TONIGHT
NE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING
SE AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT
6 SECONDS AND NE 1 FOOT AT 8 SECONDS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE
AFTERNOON.
SUN NIGHT
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT
5 SECONDS AND E 1 FOOT AT 8 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND SW 2 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N
3 FT AT 5 SECONDS. A CHANCE OF SNOW SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-220600-
VINEYARD SOUND-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
TONIGHT
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
8 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE
AFTERNOON.
SUN NIGHT
W WINDS AROUND 10 KT, BECOMING N WITH GUSTS UP TO
25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
7 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SW 2 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND NW 2 FT AT
6 SECONDS. A CHANCE OF SNOW SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-220600-
BUZZARDS BAY-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: W 3 FT AT 8 SECONDS AND SE 2 FT AT
8 SECONDS.
TONIGHT
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 7 SECONDS AND E 1 FOOT AT 7 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE
AFTERNOON.
SUN NIGHT
W WINDS AROUND 10 KT, BECOMING N WITH GUSTS UP TO
25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT
6 SECONDS AND SE 2 FT AT 8 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 2 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS. A
CHANCE OF SNOW SHOWERS IN THE EVENING.
TUE
NW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
TUE NIGHT THROUGH WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-220600-
RHODE ISLAND SOUND-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: S 5 FT AT 8 SECONDS AND SE 5 FT AT 8 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
SE WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT
AT 7 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN LIKELY
IN THE AFTERNOON.
SUN NIGHT
W WINDS AROUND 10 KT, BECOMING N WITH GUSTS UP TO
30 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT
7 SECONDS. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND SW 3 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS.
TUE THROUGH WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-220600-
BLOCK ISLAND SOUND-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND SW 3 FT AT
7 SECONDS.
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN RAIN IN THE AFTERNOON.
SUN NIGHT
W WINDS AROUND 10 KT, BECOMING N WITH GUSTS UP TO
30 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT
7 SECONDS. RAIN.
MON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND SW 2 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS AND NW 2 FT AT
5 SECONDS.
TUE THROUGH WED NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-220600-
BOSTON HARBOR-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. WAVES
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
SUN
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
WAVES AROUND 2 FT. RAIN.
SUN NIGHT
NE WINDS 5 TO 10 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES AROUND 2 FT. RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
2 FT. A CHANCE OF SNOW SHOWERS. A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. A CHANCE OF SNOW SHOWERS.
TUE THROUGH WED NIGHT
NW WINDS 15 TO 20 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-220600-
NARRAGANSETT BAY-
104 PM EDT SAT MAR 21 2026
THIS AFTERNOON
N WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT.
TONIGHT
NE WINDS AROUND 5 KT, BECOMING SE AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE
AFTERNOON.
SUN NIGHT
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. RAIN.
MON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
3 FT. A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES 2 TO 3 FT. A CHANCE OF SNOW SHOWERS IN THE
EVENING.
TUE THROUGH WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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